Implantable curved shaping part for externally shaping an implantable electrode line or a catheter

Abstract

An implantable curved shaping part for externally shaping an implantable electrode line or a catheter, wherein the shaping part has a continuous first lumen to allow a portion of the electrode line or of the catheter to pass through, wherein the shaping part has an extruded tube formed from two materials, each coextruded over a predetermined wall segment, having different shrinkage behavior or has a portion of an extruded spiral tube, wherein one of the coextruded materials or the material of the spiral tube has a high Shore hardness, in particular, of 60 Shore or more.

We claim: 
     
       1. An implantable curved shaping part for externally shaping an implantable electrode line or a catheter, wherein the shaping part has a continuous first lumen to allow a portion of the electrode line or of the catheter to pass through, wherein the shaping part has an extruded tube formed from two materials, each coextruded over a predetermined wall segment, having different shrinkage behavior or has a portion of an extruded spiral tube, wherein one of the coextruded materials or the material of the spiral tube has a high Shore hardness of 60Shore or more. 
     
     
       2. The shaping part according to  claim 1 , formed as a part that is U shaped or V shaped in the use state with rounded tip. 
     
     
       3. The shaping part according to  claim 1 , which has a silicone tube or silicone tube portion. 
     
     
       4. The shaping part according to  claim 1 , having ends that are overmolded with a material of lower Shore hardness of 40 Shore or less, whereby lumen end portions are formed that have a widened diameter, such that space for an inner adhesive layer is created. 
     
     
       5. The shaping part according to  claim 1 , wherein the coextruded materials of the extruded tube each occupy a semi-cylindrical wall segment. 
     
     
       6. An electrode line arrangement having an implantable electrode line and at least one shaping part according to  claim 1 , which surrounds a distal portion of the electrode line. 
     
     
       7. The electrode line arrangement according to  claim 6 , wherein the shaping part completely surrounds a portion between two electrode poles in such a way that a first end of the shaping part directly contacts a first electrode pole and a second end of the shaping part directly contacts a second electrode pole. 
     
     
       8. The electrode line arrangement according to  claim 6 , wherein two or more U shaped or V shaped shaping parts are arranged in succession in the longitudinal direction on the electrode line optionally with oppositely directed curvature, such that a distal end portion of the electrode line on the whole has a substantially S-shaped, Z-shaped, J-shaped, undulating or zigzagged profile. 
     
     
       9. A catheter arrangement having a catheter and at least one shaping part according to  claim 1 . 
     
     
       10. The shaping part according to  claim 1 , wherein the two different coextruded materials of the extruded tube each occupy an angular portion of a cylindrical wall segment, and wherein different angular extents of the two different materials about the cylindrical wall results in different resultant forms of the shaping part after annealing.